shadcn/ui Customization & Theming

Dark mode theming for shadcn/ui uses CSS variables applied via a class-based toggle or theme provider. Set up CSS variables in your global styles, configure Tailwind's dark mode, and add a theme toggle mechanism to switch the 'dark' class, enabling automatic palette switching across all components.

CSS variables and design tokens centralize color, spacing, and radius values in your codebase. They enable consistent theming by defining tokens once in your base layer and referencing them across components, so updating a single token value propagates throughout your entire UI.

Yes. shadcn/ui integrates with Tailwind through CSS variables in components.json and your Tailwind config. Define custom color tokens as CSS variables in your global styles, then reference them in Tailwind utilities, allowing full color customization while maintaining component consistency.

Either works. next-themes is a popular third-party option for managing theme state, but you can also build a custom class-based toggle by adding the 'dark' class to your root element. Both approaches work with CSS variable-based theming in shadcn/ui.

You need an initialized shadcn/ui project with Tailwind CSS configured, CSS variables defined in your base layer, design tokens in components.json, and a theme toggle mechanism in place. These prerequisites enable reliable token-driven customization and dark mode support.